Stopping mechanism for sewing-machines.



No. 876,211. PATBNTED JAN. 7, 190B.

- H. 0. MILLER.

STOPPING MECHANISM FOR SEWING MACHINES. APPLICATION FILED MAY 26, 1905.RENEWED JULY 31, 1906.

4- SHEETSSHBET l.

c ulnucufoz wi hwozm PATENTED JAN, 7, 1908.

H. G. MILLER. v STOPPING MECHANISM FOR SEWING MAGHIN APPLICATION FILEDMAY 20. 1905. RENEWED JULY 31, 1906.

4 SHEETS-SHEET 2.

18 i (messes PATENTED JAN. 7. 1908.-

H. C. MILLER. STOPPING MECHANISM FOR SEWING MACHINES.

APPLICATION TILED MAY 26, 1905. RENEWED JULY 81, 1906.

4 SHEETS-SHBET 3.

* @uoentoz 23K twzoseo PATENTBD JAN. '7, 1908.

H. (:JMILLBR. STOPPING MECHANISM FOR SEWING MACHINES.

I APPLICATION FILED HAY 26. 1905. RENEWED JULY 31, 1906.

4 BHBETB-SHEET'4.

(Ju-ucufoz hwoaao ploy power sliiitiin mechanism, cm..nect

the step at at time hen the j voted, end nltlni'rmvn from the nine?I-IENRY OnMILLiEl-v, O1 WATERFORD, NEW YORK STOPPING- MEGHANISM FORSEXV'INGJ/IACHINES.

Application filed May 26. 1905. Serial No. 262.401- Renewed July To allwhom it may ('ONCE'I'H.

Be it known that l, HENRY Ml'im zn, 2L citizen of the United States,residing in Weterfoid, in the count, of Snmtogn and State of New York,have invented new and useful Improvements in Stop Mechanism, of nhichthe following is u specification.

This invention relates to iniprowinents in stopping mechanism for sowingn'nichincs.

Numerous attempts have been. made to produce 3. stopping mechanism,which will positively stop the needle of e sening ma chine above theinhi'ic without jarring or causing undue wear-on the stitchingmechanism, irrespective of the speed of ma chine. All such constructionshnon n to me. foil absolutely to meet the practical requirements of thetrade, 'yninmril' because the final StO)pll1g means comes lino operationith such force as to vibrate, and hence disarrange the delicate andinirimitc parts of the sewing mechanism. Under these conditions thefinal step will, in durtiinc, lulu place at a period n hen the needle isdonn in the material.

According to my present iiniention, i chi ed to and cooperet .g: with ayielding rctnrder and o stop, the latter designed to he thrown into thepath oi it dog, which thrown out of the path of the stop by contriiugelforce, and into the path of mid stop by a spring or the like. Theolrjcct oi thesielements when stopping the lug; nutchine, is to throwthe pmxer, and in tighten n. flBXlilkl" rclmde: on v. light to graduallysame time poelfion :1 stop so that nlroii speed of the'tight policy hasfallen helm; a predetermined speed, the dog is ectnzited to encounterthe stop to positively and iinziil c bring the sening mechanism to itstands-"ll.

'l he mechanism is tnned and gno'gmrtn red,

that the retorder ill cilectinilly reduce speed oi the light pulley, andthe Q engine-u s we oiimnrily adopted for use .i'i ining;

Specification of Letters Patent.

Iatented Jan. 7, 1908.

31.1908. sane no; 328.620.

'tion of my invention, illustrating the stopping mechanism thrown topern'nt the sowing mechanism to operate. Fig. 2 is o partiel sideelevation of o sewing nn'lclnne, with at part oi the stopping mechanismin section,

and thrown to step the sewing mechanism. 1 3 is n plan View of thestopping rncehsin, positioned, parts being in the position shonn inFig. 1. Fig. 4 is on end elevation nith the lust and loose pulleysremoved. Fig. 5 is on end elevation. Fig. 6 is a face view of the festpulley, illustrating the dog. Fig. 7 :1 detail 'i( .1'spo 'tive view ofthe stop lug and its collztl. Fig. 8 is it view of a inedilicolion.

'lhc numeral 1 indicates a sowing machine,

2 the power shalt, and 3 a. hearing for the some. Mounted fast on theshelt 2 by a. screw s e. pulley 4, having huh 5 coincident with homingS; and a. sleeve 6. The

circumference of" pulley 4, is grooved to formn friction pulley 7, andadjacent the groove a. second out much smaller groove 8, to receive thepower belt. in a recess 9, of pulley -il, is a dog 10, pivotcdetll,having on cngaging point 12, and n. spring l3, which forces the pointtoward the huh 5.

A loose pulley 15 is mounted on the sleeve 6, and it is provided withshallow groove 16, edjnocn t groove 8, of the test pulley. A sleeve 17on shaft 2, bears against the pulleys 15, to retain it in properposition, and a nut 18 holds the sleeve in place. 1

A collar 19 having flanges 19 to form :1. groove, is mounted to slide onthe hearing 3, and huh 5, and extending from the (seller is or stop lug30, which cooperates with the dog 9, to bring the sening n'icchenism too final stop. An itlll'l 2] depends from the eoller, end is formed withon opening throng-3h whieh o yielding belt passes.

24 indicates a belt shifter, provided with two arms 20? and 21connected. by a, bolt 25, i'or convenience in asscinhii igond'disnmntlin the parts. Ann '20 is enl rged to form. su stentialflange 26, and it an opening 27, through which the UUHQJ' -5 passes, thehead being i'ierrower than the groove to per init thehelt shifter to hemoved a. greets: distenoe thin the stop log '26. A1111 21 is fOlll1-c..with on opening 28, end mounted to slide lnterslly on the sleeve theouter end of said errn hex-lug on opening through which the powerlreltfpnss The belt shiitei is modate any angular position of the powerbelt 29, without displacing or rearranging any of the other parts.

in standards 30, is mounted a shaft 31, carrying a tilting frame 32,having a projection 33, formed With openings to receive the terminals ofa yielding belt 34 which fits in the groove 7 of the fast pulley. Oneend of the elt is fastened in its opening by a set screw 35, then it ispassed around the friction pulley, and throu h the opening 22 of the armstop 49 is reached, causing arm 45 to move the 21, and'is final ysecured in its opening by a set screw 36. The upper end 37 of the frame32 has a headed projection 38, between which and said end 37, the flange26 is loosely held by means of which movement of the frame 32,'isimparted to the belt shifter. A latch arm 39 extends from the frame 32,and is caught by a latch 40, pivoted at 41, and control ed by theautomatic throw out mechanism 42. A spring 43 is attached at one end tothe latch arm 39, and at its opposite end ine, anad- 44 limiting theupward move- To start the sewing mechanism, connection 48, is operatedto draw down lever 45 until tilting frame 32 on its fulcrum 31 towardthe sewing machine, until lever 39 is caught and held by catch 40.Projection 33 being on the frame, when the latterlis tilted, the projaction is raised and consequently the belt 34 is slackened and frictionon pulley 7 is removed, and as frame 32, is loosely connected to flange26 ofthe belt shifter, the latter carries belt 29 from the looseto thefast pulley,

and the stop lug 20 from the path of the, dog 10, as shown in Fig. 1. Asthe distance between \the centers of thefast and loose pulleys isgreater than the required movement of the stop lug 20, the flange 26moves between the flanges of the collar 19. "Hence in starting themachine, flange 26 moves the distance from the full to the dottedlineposition indicated at (L111 Figure 2, before c01- lar 19 carryingstop 20 commences to move;

This gives ample time for the belt to be in proper position to engagethe fast pulley by the time stop lug '20 isclear of the .doglO The belthaving been transferred from the loose to the fast pulley, the sewingmachine is 'in motion, and as the pulley 4 is revolved rapidly in thedirection of arrow 1;, Fig. 6,

the dog 10, is thrown outwardly and away from the normal path of thestop lug 20, by centrifugal force,- against thetension, of-

13, as shown in dotted lines in Fig.

g, i 6. I ien the required number of stitches have been completed, theautomatic throw out mechanism 42 disengages the latch, and the spring43, acts to return the sto ping mechanism to normal position, as folows:

The tilting frame 32 now being actuated spring,43, the belt shifter ismoved toward the i right (Fig. 2) which shifts the belt from the fast tothe loose pulley, and moves the stop lug 20 to its normal position.However,

by reason of the construction of the collar 19 dog engages it when thespring 13 overcomes the centrifugal force'of pulley 4, and the sewingmechanism is stopped. However, as the collar 19 is connected to belt 34by arm 21, and as the said collar is free to turn, when the dog engagesthe stop the belt is pulled tightly aroundpulley 7, which insures of thefinal stop being made softly and without back lashing; The stop lug andconnection with the belt 34, are arranged so that when the finalcushioned stop takes place the sewing mechanism is positively stop edwith the needle elevated and out of the fa ric.

It must be understood that the spring 13 is of the proper tension, sothat it can only overcome the centrifugal force when. the speedoftherfast pulley is greatly-reduced, hence when the stop is engaged,the belt 34 will serve as afinal cushion. i

The yielding belt to retard the movement of the fast pulley is of theutmost importance. It is noiseless; it is quickly adjusted; and. it isellec iveas a binding agent. The centrifugal force overcoming thetension of the dog spring to remove the dog from the patriot the stoplug, is also-important. These two vital features with therr'necessaryconnec:

tions in an. organized stoppin mechanism, one dependent on the other anoperating in eonjunction with each other produce a positiveandconyement, means of sto ping the mechanism to-insure of the needleeing leftin the proper position for the nextoperationl The location ofthe yielding belt, and its connection '.with the tilting frame andthe:

arm of the stop. lug, serves to not only'prelimina'rilyretard themovement ofthe fast pu1le'y,-' but also serves to finally stop themovement ofsaidpulley, sho'uld'the contact with the stop 'lug'take-placea moment before the-predetermined time. 4 A i the stitching mechanism,with, a spec needle in each instance being elevated above- Inpracticaluse,Ihavesuccessfullystogped; I25

high as three thousand revolutions,- and as ,low' as fifteenrevolutions. per minute, the

attribute to thopeculiararrmigemcntof parts path of the stop, thereverse movement of previously described.

'lhe'stopping mechanism may be manually operated during the stitchingoperation, by disengaging the latch as will be readily understood.

My invention may be arranged so to he used as a safety device.v Asillustrated in 8, 50 indicates a fast pulley, 51 a power belt, 52 a dogon the pulley and 53 a stop adapted to be mennally operated. inoperation this arrangement of parts is such that when starting amachine, the stop is either removed, and then replaced, or the dog islifted over said stop until the centrifugal force is sufficient towithhold the dog from the path of the stop. Should a break occur, thedog will enqage the stop immediately the revolution of the pulley fallsbelow a predetermined point. If a brake be applied to slow down thespeed of the pulley, the stopping operation is just as effective.

W at I claim as now is:

1. In combination, a machine haiing a power shaft and a fast dogcarrying element, a do movably mounted on the dog carrying e ement andrevolved thereby, and a stop, said dog being moved out of line with thestop by centrifugal force when the dot carr ing element exceeds apredetermined speed, and moved into line with the stop by the slowing ofthe speed of the pulley, to stop the machine in a determinateposition.

2. In combination, mechanism having; a power shaft and a dog carryingelement, a stop movable toward and from-the plane of travel of aremovable dog, traveling toward the stop, said'dog engaging the stopwhen the speed of the power shaft falls below a predetermined speed, tostop the mechanism .at a determinate position.

3. In combination, mechanism having a power shaft and a. dog carryingelement, a movable oushloned stop, and a movable ..""5

dog which engages the stop when the power shaft revolves below apredetermined speed to stop the 'mechanism. at a iiletorminate point.

'4. In combination, mechanism liming a power shaft and a dog carryingelement, a

. movable stop, a "movable dog which engages the stop,an( aspringforcing the dog toward the stop. the dog being throw n from the path ofthe stop by centrifugal force and thrown toward the stop by the springwhen the speed of the pulley falls below a predetermined speed, to stopthe mechanism at a determinate point.

5. combination, mechanism having a powerisha-ft and fast and loosepulleys, a

stop,'power transmitting; means, a rnov able dog, and-fa shifter, theshifter transferring the power transmitting means to the fast pulley andmoving the stop, the dog being ,thko'rfvnbycentrifngal force from thenormal the shifter transferring the power transmitting means to theloose pulley and returning the stop to normal position, the. reductionof speed of the power shaft causing, the do e to assume normal positionto contact with the stop to hold the securing mechanism in apredetermined position.

6. In combination, mechanism having a power shaft and fast and loose.pulleys, power transmit ting means a cushioned stop, a mo1al le dog, anda shifter, the shifter transferring the power lri'mslnitting means tothe fast pulley and moving the cushioned stop, the dog: being thrown bycentrifugal force from the normal path of the cushioned stop, thereverse mo'iement of the shifter transferring the power transmittingmeans to the loose pulley and returning the cushioned stop to normalposition; the reduction of speed of the power shaft causing the dog toassume normal position to contact with the cushioned stop to hold themechanism in a predetermined position.

7. In combimitimi, mechanism having a power shaft and fast and loosepulleys, power transmitting means, a stop, a movable dog, it springnormally pressing the (log in the path of the slop, a shifter, theshifter transferriri the power transmitting means to the t pulley andmoving the stop the dog being thrown by centrifugal force from thenormal path of the stop the ro.erse movement of the shifter transferringthe power transmitting means to the loose pulley and returning the stopto normal position, the reduction of speed of the power shaft causingthe dog to assume normal position under the influence of its spring tocontact. with the. stop to hold the mechanism in o predeterminedposition.

8. In combination, a machine having a power shaft and a fast and loosepulley, power transmitting means, a shifter, a stop mow able with theshifter, a dog on the fast pulley, a rctarder, means connecting theretnrder and the stop, the movement of tho shiftertraiisl'erring thepower transmitting means from the fast to the loose pulley whichactnates the retarder to reduce the speed of said fast pulley, at whichtime the dog moves to engage the stop to stop the machine at a with theretarder, the movement ally mounted yielding retarder, a connectionbetween the actuating the.

retarder and the stop, means yielding retarder to reduce the speed ofthe pulley to cause the dog to move and engage the stop, said engagementalso acting to tighten the retarder.

13. In combination, a machine having a power shaft and. a fast andloose-pulley, a dog power transmitting means, a stop, a retarder, ashifter and means for actuating the shifter whereby-the stop is moved,the power transmitting means shifted to the loose pulley, and theretard'er actuated to reduce the speed of the fast pulley, at which timeth dog engages the stop.

14. In combination, a machine having a fast and a loose pulley, powertransmitting means, a stop, a movable dog, retarder con-- nected withthe stop, and a shifter connected of the shifter transferring the powertransmitting means from the fast to the loose pulley which also actuates"in. retarder, and moves the stop, the reduction of the speed of thefast pulley causing the dog to engage the stop and further actuate theretarder.

15. In combination, a machine having a fast and a loose pulley, powertransmitting means, a dog, a cushioned movable stop, a retarder, ashifter, and means for actuating the shifter whereby the stop is moved,the power'shifted to the loose pulley, and the retarder actuated toreduce the s eed of the fast pulley, at which time the og engages thecushioned stop, the latter engagement also serving to retard themovement of the fast pulley before the final stop takes place.

16.' In combination, a machine having a power shaft an a fast pulley, astop, a pivotmally; forcing the dog inwardly, the do'g being thrownoutwardly by centrifugal force, a retarder, and-means simultaneously-actw ating the stop and the retarder to reduce the speed of-t'hepulley,-at which time the spring overcomes the centrifugal forcc a'ndcauses the dog to move and engage the stop.

.17. In combination, a machina hay ng a power shaft and a fast pulleygjastop, a rev oluble movable dog, retarder, and meansautomatically.operating the retarder to re? duce'the speed of the pulleyat which time the dog moves and in its revolution it engages the stop.

comprising a 'of the fast pulley falls og on the pulley, means no'rbeltis 18. In combination, a machine having a power shaft and a fast andloose pulley, power transmitting means, a movable dog, a stop, aretarder, a shifter, and means for moving the shifter, the movement/ofsaid shifter shifting the power transmitting means to the loose pulley,tightening the retarder on the pulley, bringing the stop into positionto cooperate with the dog,- said dog engaging the stop when the speed ofthe pulley has been decreased.

19. In combination, a machine havinga power shaft and fast pulley, powertransmitting means, a yielding retardercomprising a belt, means fortightening the belt to retard themovement of the pulley, and a finalstop.

20. In combination, a machine having a power shaft and a fast pulley,power transmitting means,

belt, and means for tightening the belt to retard the movement of thepulley, and a cushioned final stop. l

21. In combination, a machine having a power shaft and a fast pulley,power transmitting means,'a yielding retarding device passin over thepulley, the ends of said retarder being secured to a tilting lever, inglever, a stop controlled by the tilting lever, and a movable dog, thetilting lever actuating the retarder and reducing the speed of thepulley to permit the dog to move and engage the stop.

a yielding retarding device a tilt- 22. In combination, mechanismhavinga power shaft and fast and loose pulleys, a pivoted dog with ameans to normally force it inwardly, a slidable stop mounted to be movedin the direction of the power shaft, a retarder connected with the stopandv acting on the fast pulley, and automatic means for actuating theretarder and sliding the stop in the path of the dog, said dog engagingthe stop and cushioning the blow and bringing the mechanisms to a stopwhen, the speed mined oint.

power shaft, fast and loose pu lleys thereon,

- a belt and a stopping mechanism' saidstoppin mechanism com rising abelt shifter, a cus iioned stopcontro led by the belt shifter, a springactuated sto ping do normally ressed toward the patii of the "s op,means or actuating the shifter," the dog being thrownfrom the path ofthe'stop by'deih trifugal force when the belt is on the fast ulley, andfhrced into the path of the stop y its sin-mg; to stop. the, machinewhen the shifted to theioose pulley, and the speed ofthe fastpulleyisreducednr 124. in edmbination.,mechanism having a power'sh andfast and loose pulleys, a wit, a move-hie dbg carried by the fast p xl'ley, a 'niovahle stop, a'belt shifter loosely mounted to be positionedat any' an 'le to re- .ceive the belt, the belt shifter controlling thebelow a predeter n combination, a'machme having a movement of the stop,and means for operating the shifter to move the belt from the fast tothe loose pulley, and move the stop in the path to be struck by the dogwhen the fast pulley reaches a predetermined speed to stop themechanism.

25..'ln combination, a machine havinga power shaft and a'l'as't andloose pulley, a stop, a movably mounted dog, a retarder, lncansactuating the retnrder to reduce speed ofthe pulley cause the dog tomove and engage the stop to stop the inn chi 2 at a predetermined point,a belt cooperating with the fast and loose pu ley, one a belt shiftermounted to turn concentric with the power shaft.

26. In combination, machine having a. power shaft and a last and loosepul ey, a dog, a retarder provided with a sto belt shifter carried bythe retarder and having circular and lateral movement thereon, a beltcarried by the belt shifter to transfer the belt from the fast to loosepulley and vice versa, and to move the rctarder. to place the stop inoperative position relative to the dog, and means for operating the beltshifter.

27. In combination, e machine having a power shaft and fast and loosepulley retarder having a stop and formed with a groove, a pivoted dogthrown 'aylroni the stopbycentrifugal force when the shalt is revolved,means to return the dog to normal position, a belt shifter fitting inthe v groove and having circular and lateral moveinent therein, a belt,means for operating the belt shifter to transfer the belt .l'roin thefast to the loose pulley and vice verse, and the retarder.

28. In combination, a machine having a power Shaft and lust andloosipullers, a pivoted dog nningnted on the last pulley, 1., stopcooperating with the iivetod dog, 5: retarding device formed with agroove, a belt shifter engagin the groove and turning lateral n'iovementtherein, a beltshifter, and means to 0 crate the belt shifter to movethe belt in in Vance of the movement of the stop.

,29. In combination, a machine having a power shaft and last and loosepulleys, api'coted dog, a retarding device '[u'ovidod with a stop and agroove, a beltsniiter mounted in .hegroove and carrying a belt, a leverengaging the belt shifter to transfer the belt from one pulley to theother, and also move the stop with relation to the dog, the shifting ofthe belt being started prior to the movement of the dog, and theretarderbeing operated before the movement of the belt is completed whenstopping the machine.

I, 30. In combination, a machine having a shaft, carrying a. dish, aretarding device, which includes a yielding element contacting Withthedisk, a iinal stop, power transmitting rneans forr opcrating the shaftand releasing the retarding device, and shifting the power transmittingmeans, and auto matic means for applying the retarder and the iinnlstop, to stop the machine at a predetlcrniinel point.

Si. in combination, a machine having a power shaft and test and loosepulleys, a pivoted dog, a stop coopm'ating thcriwrith, man ual means:tor removing the stop from the path of the dog, said dog being thrownfrom its normal position by movement of the shaft, a retarder,nutoinali' means for throwing the stop to its normal position andapplying the retordcr, the reduction of the speed olthe .niachinepermitting the automatic means to return the dog to its normal positionto contact with the stop, to stop the machine at a prcdeterininerlpoint,

312, in combination, a machine liaviz'ig a power shaft and fast andloose pulleys, a pivoted dog, a stop cooperating therewith, manual meansfor removing the stop from the path ol' the dog, said dog being thrownfrom its normal positi n by movement of the machine, a rotari'ler havinga yielding movement, automatic means for throwing the stop to its normalposition and operating the retarder, the reduction of the machine perniittii the dog to assume norm all position to contact will. the stop tostop l ll P machine at a prcdetcrniinod point.

33. lln combination, a nnichine having a power shalt, a disk on theshalt, a positive stop comprising a pivoted dog and an abut ineuttherel'or, a yielding retardcr passing over the disl; and having itsends fixed, and means operating the reti'u'der in advance ol theengagement of the dog with its abutmen t, said means also serving toposition the abutment in a plane to be encountered by the dog.

Si. in combination. a nuichiue having apowcr shalt and lust pulley.pivoted dog carried by the fast pulley which is thrown outnnrdly bycentrifugal force, a spring for returning the dog to normal position, astop, a yielding retiu'dcr on the last pulley, and means for operatingthe rctarder, the movement of said means also serving to position theslop relative to the dog for the latter to engage the former to stop themachine at a preiletcrniincd point.

3-). in combination. a n'nichine having a power shall and last pulley, afinal stop which includes a dog and an abutment, a yielding retarderpassing around the fast pulley and having its ends fastened, means foradjusting the tension of the rclardor on the pulley, and menus foroperating the retardcr, also the dog to finally stop the machine at adeterminate point.

30. in combination, a machine having a power shalt, a rctarder, a finalstop, and means for operating the rcturdcr, the final stop beingoperated by the decreased speed of the power shaft.

37. In combination, a machine having a power shaft and fast pulley, a''elding re= tarder operating on the fast pu ley, a final stop, and meansfor operating theretarder, the finalstop being operated by the decreasedspeed'of the fast pulley, to stop the machine at a" redetermined point.

38. In com ination, a machinehaving a power shaft and disk fast thereon,a yielding retarder operating on the disk,'a final stop, means forreleasing the retarder, and releasing the final stop to start themechanism, and means for re rsing the movement of the retardingoperating means, and returning the final stop to normal position, tostop the machine at a determinate'point.

39. in a stop motion device, tion with a power shaft, fast and loosepulleys on said shaft, a positive stopping device between the shaft andfast pulley, said stopping device including a movably mounted dognormally in contact with a stop, manual means for withdrawing said stopfrom looking position with the dog sim iltaneously with the shifting ofthe belt from the loose to the fast pulley when the shaft is revolvedbeyond a determinate speed, and automatic means for reducing the speedof the shaft to cause the movable dog to contact with the stop and stopthe shaft in a determinate position. I

40. in a stop motion device, the combination with a power shaft, fastandfoose pulleys on said shaft, a belt shifter, a stopping deviceincluding a movable dog mounted on the-fast pulley and a stop with whichthe movable dog normally engages, means for operating the stop'beltshifter to transfer the belt from the loose to the fast pulley torevolve the shaft and thereby throw the movable element into operableposition by centrifugal force, and automatic means for moving the beltshifter to throwthe belt from the fast to the loose pulley and reducethe speed of the shaft to permit the movable dog to engage the stop andstop the shaft in a determ'inate position.

41. In a stop-motion device, the combination with a rotary shaft havingfast and loose pulleys thereon, of a belt-shifter, holding means forretaining said belt-shifter in position so that the driving-belt willrun on said fast pulley, automatic means for triping the said holdingmeans and for-moving said belt-shifter, to transfer the driving-beltfrom said fast pulley to said loose pulley, a positive stopping devicefor said shaft, and a friction belt which is operated independently ofthe said positive stopping device and which is drawn against the fastpulley when the said belt-shifter is moved to transfer the saiddriving-belt to said loose"pulley, the said frictionbelt being soarranged that when it is drawn against the fast pulley the movethecombine ment of the latter is arrested or retarded before the saidpositive stopping device comes into operation, so as to soften the jaror shock of t e final st o 42. In a stop-motion device, the combina tionwith a rotary shaft having fast and loose pulleys thereon, of a beltShifter, .holding means for retaining said belt shifter in suchpositiont-hat the driving-belt will run .onsaid fast pulley, automaticmeans for tripping'.said holding means and for moving said beltshifter,to transfer the drivin -belt from said fast pulley to said loose pul ey,a positive stopping device for said shaft comprising a stop, a frictionbelt which 18 operated independently of. the said stop and which isoperated when the said belt-shifter is moved to transfer saiddriving-belt to said loose pulley, and adjusting means for varying thestress of said belt to cause more or less arresting or retarding actionto be exerted before the said positive stopping device comes intooperation; whereby the jar or shock of the final stop may be softened toany desired degree.

431 A stop-motion device "comprising .a

driven shaft, a positiveesto pingrlevice therefor including a stop an anelement cooperating therewith, fan independentlymounted and indeendently-operated arresting or retarding device for. said shaft, andcommon means for tripping said arresting or retarding and positivestdpping devices into action to effecttheir successive operation uponthe driven shaft.

44. A stop-motion device comprising a driven shaft; a positive stopping.device therefor, an independently-mounted and independently-operatedarresting or retarding evice'for said shaft, common means for trippingsaid arresting or retarding and positive stopping devices into action toeffect their successive operation upon the driven shaft, and acushioning device for the said J positive stopping device.

45. In a stop motion device, the combinetion' with a revolving powershaft having fast and loose pulleys thereon, of a belt shifter, holdingmeans for retaining said belt shifter in position so that the drivingbelt will run on said fast pulley, automatic means for tr'ippingthe saidholding means and for moving said belt shifter to transfer the drivingbelt from said fast to said loose pulley, a stopping device for saidshaft, including a pivoted element thrown outwardly by centrifugal forcewhen the revolving powershaft isset into motion and a retarding elementis released, and aretarding element, the retarding element reducing thespeed of the fast pulley when Y said belt shifter is moved to transferthe belt from the tight to the loose pulley tolallow the pivoted element.to assume normal positionto permit the mountcdwlog normally in contactwith said stop, means for manually withdrawing the stop from contactwith the dog and shifting the belt from the loose to the fast pulley torevolve said fast pulley and centrifugally throwing the dog out of thepath of movement of the stop, and means for reducing the speed of thepower shaft to cause the dog to assume normal position and contact withthe stop to stop tho shaft in a determinate posi tion.

47. In a stop motion device, the combination with a power shaft havingfast and loose pulleys mounted thereon, a belt shifter, a stoppingdevice including an element which is thrown outwardly by centrifugalforce, and a movable element cooperating with the centrifugally thrownelement, means connecting the movable element and the belt shifter,means for operating the movable element and the belt softer to transferthe belt, end automatic mea s for operating the movable element and the.belt shifter to reduce the speed of the power shaft to allow thecentrifugally operated element to assume normed position and contactwith the movable element to stop the shaft in a determinate position.

48. In a stop motion device, the combination with a power shaft, powershifting means, a centrifugally operated, stopping element, saidstopping element being thrown outwardly when power is applied to theshaft, :1 second element cooperating with the centrifugally operatedstopping element, means for withdrawing the second mentioned elementfrom contact with the centrifugally operated stop ing element, automaticmeans for releasing t e second element to retard the movement of thepower shaft, and adjusting means cooperating with the second stoppingelement to cause one or more revolutiohs of the power shaft after thesecond elemeht is automatically released and before the centrifugallyoperated stopping element finally stops the movement of said shaft.

49. In a stop motion device, the combination with apower shaft, havingfast and loosopulle'ys thereon, a belt shifter, a centrifugally operatedelement, a stop with which the centrifugally operated elementcooperates, means for manually moving the belt shifter to transfer thebelt to the fast pulley and simultaneously withdrawing the stop fromnormal position, automati means for returning the belt shifter and thestop to power shaft, the centrifugally operated element while thrownoutwardly being out of contact with the stop until predetermined speedand position of the power shaft is reached.

50. In a stop motion device, the combination with a power shaft, fastand loose pulleys mounted thereon, a belt shifter, two stopping devices,one of which is pivotally mounted and is centrifugally thrown fromnormal position outwardly to permit the )OWLI' shaft to revolve when thepower belt is applied to the fast pulley, the other said stopping devicemounted to be moved independently of the pivotally mounted stoppingdevice, means for moving the second mentioned stopping device and thebelt shifter to move said belt shifter in JUSlblOn so that the drivingbe t will run on t 0 first pulley, said movement also releasing thesecond mentioned stopping device, and automatic means for operating thesecond mentioned stopping device to reduce the speed of the, revolvinpower shaft and allow the pivotally mounted stopping device to assumenormal or locked position to permit stopping the revolving shaft in adeterminate position.

51. in a stop motion device, the combination with a power driven shaft,a driven element fastened to said shaft, power shifting means, :icentrifugall controlled element carried by the driven eliunent, a stopcooperating with the centrifugally controlled element, saidcentrifugal-11y controlled clement positioning itself with relation tothe stop when the power shifting means is operated and the speed of thepower shaft is reduced, the cooperation of said stop and saidcentrifugnlly operated element causing predetermined stopping andpositioning of said shaft.

52. in a stop motion device, the combination with a )ower driven shaft,a centrifugally controlled element, means fastened on the shaft tosupport the centrifugally con trolled element, a non-revolving device00- oierating with the centrifugall controlled element to stop therevolving s raft when a predetermined speed and position of said shaftl-a reached.

.33. In a stop motion device, the combination with a. rower drivenshaft, a centrifugally controlled element, means fastened on the shaftto support the centrifugally controlled element, power shifting means,and a locking device, the centrifugally controlled device preventingthefinal lockingof the shaft by the locking device until a predeterminedspeed is reached after the shifting means is moved.

5-4. in a stop motion device, the combine tion with a power drivenshaft, a cenirifu gall controlled element, menus fastened to the shaltto support the eentrifugnlly opernormal position to reduce the speed ofthe ated element, a locking device cooperating with the centrifugallyoperating element, the] In testimony whereof I fifiiX my signature,clelntfifiilgizilli operated elegient preglentin in presence of twosubeoribing Witnesses. 't' e ma 0c ing unti a re etermme s ee k andposition of the shafiz is reached, andPa-d- HENRY MILLER 5 justablemeans to reduce the speed. of the Witnesses: v shaft to alter the timeof the operating of the WM. F. PALMER, Racking device after power is shied. ALoNzo KNAPPEN.

